Staggered center knobs in groups of 1 2 and 3 paired with angled shoulders and large aggressive corner knobs. Soft compound perfectly suited for downhill enduro and all mountain riding or helping to dampen the ride on the front or rear. EBIKE25 - has achieved a passing rating for use with E-Bikes up to 25kph and is ECE-R75 approved. *Please note that EBike rated tires also can be used with non-Ebikes and are generally more durable than standard tires